از گفتن "I don’t know" در اسپیکینگ آیلتس خودداری کنید

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00:00 خوش آمدی
00:47 مقدمه
05:08 I am not (too) sure
06:18 I can’t say for sure, but
07:58 Off the top of my head, I would say
09:41 As far as I can see
11:52 I’d hazard a guess that